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Tag: "sounds" at biology news

Art and music for the birds

...eator John Walsh, a video artist, who sent Demaray sounds made by the catbird, an avid appreciator of human noise. The Rutgers-Camden scholar makes art that interacts with natural surroundings – imagine spotting a tree donning a sweater or finding a rock upholstered as a baseball. She decided to find out if...

Snoring in children might be an allergic type disease

...lergic diseases. So whilst the condition looks and sounds similar in adults and children it can have quite different causes and risk factors. The study published in the latest edition of the international medical journal, Pediatric Pulmonology has established children with rhinitis who were first born, wer...

Moths mimic sounds to survive

...ncrease their chances of survival by mimicking the sounds of their bad-tasting cousins, according to a new W...ies of tiger moth use the tymbals to make specific sounds that warn the bat of their bad taste. Other species make sounds that closely mimic those high-frequ...

Female-led infanticide in wild chimpanzees

...d infanticidal attacks. Alerted to the killings by sounds of chimpanzee screams, the researchers directly observed one infanticide, and found strong circumstantial evidence for two others. Evidence suggested that in two of the cases, the killings were perpetrated by groups of resident females against "stran...

Dinosaur hearing, listening to muscle noise, quieter cubicles

... environmental sounds, and the addition of masking sounds that can obscure speech. It also determines the q...sess lost opportunities to hear and respond to the sounds of nature. At the Grand Canyon, efforts are being made to implement the National Parks Overflights...

Bisexual fruit flies show new role for neurochemical

..." he said. "Trying to understand fly bisexuality sounds silly, but these behavioral changes are important evidence that ambient extracellular glutamate and xCT transport proteins play important, unsuspected roles in brain function," Featherstone said. "We think we'll be able to learn a lot about perceptio...

Research finds music training 'tunes' human auditory system

...heir attention focused on the movie and though the sounds had no linguistic or musical meaning for them, we found our musically trained subjects were far better at tracking the three different tones than the non-musicians," says Wong, director of Northwestern’s Speech Research Laboratory and assistant profe...

Neural bottleneck found that thwarts multi-tasking

...r key in response to hearing one of eight possible sounds and uttering an appropriate syllable in response to seeing one of eight possible images. Different senses and motor responses were enlisted in order to ensure that any interference between the two tasks was not specific to a particular sensory or mot...

Do you hear what i see?

...gration in communication or to help pin down where sounds are coming from. "Clearly, our acoustical understanding often improves if we can see the lips of the speaker—for example at a crowded cocktail party," he says. "However, currently it is not clear whether and how audio-visual interactions are speciali...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...en Peterson sampled bay scallops in North Carolina sounds in late summer before and after the cownose rays passed through, he found that most scallops survived the ray predation, allowing the scallop population to support a fishery and still replenish itself each year. In contrast, sampling by Peterson and ...

Cities change the songs of birds

...pects of the vocal variety of animal communication sounds are shaped by the environment. The authors point out that song divergence within a species as a result of such “environmental shaping?could potentially play a crucial role in the process of speciation, although it is not at all clear whether urban an...

Train your brain to hear your friends at a party

...ned" to cope with the hearing loss and distinguish sounds much better. The Oxford study placed healthy fe...riod were as good at detecting the location of the sounds as they were before being fitted with an earplug. Something in their brain was changing or adapti...

Sensory feedback during speech: The brain attunes to more than just sound

...eby able to specifically target vowel or consonant sounds to study whether the production of certain types of sound was especially sensitive to somatosensory cues. The researchers found that over time, the subjects in the experiments learned to compensate for the robotic interference, thereby "correcting" t...

HIV gets a makeover

...ineering and forced evolution," Bieniasz says. "It sounds simple, in theory, but it took us two years to do." Bieniasz and Theodora Hatziioannou, a research scientist in the lab and the paper's first author, had to overcome two major obstacles: the first was a protein called TRIM5 that, in monkeys, recog...

New dyslexia theory blames 'noise'

...yslexia on a neural deficit in processing the fast sounds of language. Instead, the studies suggest that ... to have shaky mental categories for the essential sounds that make up language. "It's harder to make a [language] task automatic when your categories ar...

Slow brain waves play key role in coordinating complex activity

...y colleagues then recorded activity in response to sounds and visual stimulation. Several hours of data from five different patients revealed that high-gamma activity was locked to the theta rhythm in many different areas of the brain. The stronger the theta wave, the stronger the coupling to high-gamma o...

Scientists get best look ever at water-life connection

...ing protein -- it's that simple," Zhong said. "It sounds trivial, I know. But it should be trivial. "It's an essential biological interaction that has to work just right every time. If the water moved too slowly, it could get in the way of proteins trying to meet -- it would be a bottleneck in the process...

A natural chemical found in strawberries boosts memory in healthy mice

...o not contain fisetin. While eating strawberries sounds like an enjoyable alternative to popping a pill, Maher cautions that it would take about 10 pounds a day to achieve a beneficial effect, which might prove too much even for the most avid strawberry lovers. ...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...umans as well. When subjects were presented with sounds corresponding to mouth actions (such as crunching candy, kissing, or emptying a soda can with a straw) and hand actions (such as ripping a sheet of paper or opening a zipper), brain areas are activated that overlap with areas activated by the executi...

Critical hearing gene helps send auditory messages to brain

...cking a functional otoferlin gene. When exposed to sounds of various frequencies, the mice showed no detectable activity in parts of the brain that normally process sound. They further found that the profoundly deaf mice suffered a complete loss of neurotransmitter release from their inner hair cells, des...

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